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aerospike-basic.go
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aerospike-basic.go
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// Copyright 2014-2021 Aerospike, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package main
import (
"fmt"
"log"
"time"
as "github.com/aerospike/aerospike-client-go/v5"
)
// client connect code
func connect() (*as.Client, error) {
connectPolicy := as.NewClientPolicy()
connectPolicy.Timeout = 10 * time.Second
client, err := as.NewClientWithPolicy(connectPolicy, "CLUSTERIP", 3000)
return client, err
}
func main() {
// connect to the client
client, err := connect()
if err != nil {
log.Fatal(err)
}
defer client.Close()
// define primary key
namespace := "test"
setName := "bar"
keyName := "mykey"
key, err := as.NewKey(namespace, setName, keyName) // user key can be of any supported type
if err != nil {
log.Fatal(err)
}
// define some bins
bins := as.BinMap{
"bin1": 42, // you can pass any supported type as bin value
"bin2": "An elephant is a mouse with an operating system",
"bin3": []interface{}{"Go", 17981},
}
// write the bins
writePolicy := as.NewWritePolicy(0, 0)
err = client.Put(writePolicy, key, bins)
if err != nil {
log.Fatal(err)
}
// read it back!
readPolicy := as.NewPolicy()
rec, err := client.Get(readPolicy, key)
if err != nil {
log.Fatal(err)
}
fmt.Printf("%#v\n", *rec)
// Add to bin1
err = client.Add(writePolicy, key, as.BinMap{"bin1": 1})
if err != nil {
log.Fatal(err)
}
rec2, err := client.Get(readPolicy, key)
if err != nil {
log.Fatal(err)
}
fmt.Printf("value of %s: %v\n", "bin1", rec2.Bins["bin1"])
// prepend and append to bin2
err = client.Prepend(writePolicy, key, as.BinMap{"bin2": "Frankly: "})
if err != nil {
log.Fatal(err)
}
err = client.Append(writePolicy, key, as.BinMap{"bin2": "."})
if err != nil {
log.Fatal(err)
}
rec3, err := client.Get(readPolicy, key)
if err != nil {
log.Fatal(err)
}
fmt.Printf("value of %s: %v\n", "bin2", rec3.Bins["bin2"])
// delete bin3
err = client.Put(writePolicy, key, as.BinMap{"bin3": nil})
if err != nil {
log.Fatal(err)
}
rec4, err := client.Get(readPolicy, key)
if err != nil {
log.Fatal(err)
}
fmt.Printf("bin3 does not exist anymore: %#v\n", *rec4)
// check if key exists
exists, err := client.Exists(readPolicy, key)
if err != nil {
log.Fatal(err)
}
fmt.Printf("key exists in the database: %#v\n", exists)
// delete the key, and check if key exists
existed, err := client.Delete(writePolicy, key)
if err != nil {
log.Fatal(err)
}
fmt.Printf("did key exist before delete: %#v\n", existed)
exists, err = client.Exists(readPolicy, key)
if err != nil {
log.Fatal(err)
}
fmt.Printf("key exists: %#v\n", exists)
}